What is a WRONG? Halloween candy

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
double houses;
houses = Convert.ToDouble(Console.ReadLine());
Console.WriteLine(Math.Round(2*100/houses));
}
}
}

Answer 1

try this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
double houses;
houses = Convert.ToDouble(Console.ReadLine());
Console.WriteLine(Math.Ceiling(2*100/houses));
}
}
}